Police have released CCTV images showing a man and a woman attempting to con a 76-year-old pensioner out of £15,000.
The elderly woman was near TK Maxx in The Broadway, Wimbledon at about 12.35pm on Thursday, April 24, when an Asian woman approached her asking if there was a solicitor's nearby.
The Asian woman, aged between 30 and 40 with a round face and tanned skin, said she had a winning lottery ticket worth £500,000, but would sell her ticket for £80,000 because she needed the money to send to her sick uncle in the Philippines.
During the conversation they were joined by a man who appeared to be about 40 years old and 5ft 9ins with a thick, possibly Arabic accent, who said he had called the lottery and she would need a passport and bank card to prove she had won the money.
The man, pretending not to know the Asian woman, said he had some money and if the elderly woman also had money they could buy the lottery ticket.
They took the 76-year-old to the taxi rank outside Centre Court before catching a grey cab to her home address to get her passport and bank card.
After returning to Lloyds TSB in St George's Road at about 1.40pm, the man waited outside while the Asian woman escorted the pensioner to the counter to withdraw £15,000.
The transaction was queried by bank staff, who took the pensioner into a side room to question her. At this point, the man and woman fled the scene.
Detective Constable Bonny Peckham from Wimbledon Criminal Investigation Department, said: "The victim was very confused and has been left badly frightened by her ordeal. She is vulnerable and I am appealing for anyone who may recognise either suspect to contact police."
The man had olive skin with black stubble and was smartly dressed, wearing a shirt, tie and long coat. His hair was black but covered by a flat cap.
The woman is described as 5ft 3ins with shoulder-length brown hair. She was dressed smartly, wearing a dark padded coat with dark pinstriped trousers.
If you know who the suspects are please call DC Bonny Peckham on 020 8649 3103 or if you wish to remain anonymously Crimestoppers on 0800 555 111.